NCP1217A Description
NCP1217, NCP1217A Enhanced PWM Current-Mode Controller for High-Power Universal Off-Line Supplies Housed in an SO−8 or PDIP−7 package, the NCP1217 represents the enhanced version of the NCP1203−based controllers. Due to its high drive capability, NCP1217 drives large gate−charge MOSFETs, which together with internal ramp pensation and built−in overvoltage protection, ease the design of modern AC/DC adapters. NCP1217...
NCP1217A Key Features
- Current-Mode with Adjustable Skip-Cycle Capability
- Built-in Internal Ramp pensation
- Auto-Recovery Internal Output Short-Circuit Protection
- Internal 1.0 ms Soft-Start (NCP1217A Only)
- Limited Duty-Cycle to 50% (NCP1217A Only)
- Full Latchoff if Adjustment Pin is Brought High
- Extremely Low No-Load Standby Power
- Internal Temperature Shutdown
- 500 mA Peak Current Capability
- Fixed Frequency Versions at 65 kHz, 100 kHz and 133 kHz
NCP1217A Applications
- High Power AC/DC Converters for TVs, Set−Top Boxes, etc
- Offline Adapters for Notebooks